车辆配置对气态加氢站预冷负荷的影响  

Effect of Vehicle Configurations on the Precooling Load of a Hydrogen Station

作　　者：吴一梅[1] 邵双全 陈建业 耿旭东 WU Yimei;SHAO Shuangquan;CHEN Jianye;GENG Xudong(School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学能源与动力工程学院,武汉430074

出　　处：《工程热物理学报》2023年第9期2347-2354,共8页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.52076085);华中科技大学学术前沿青年团队资助(No.2019QYTD10)。

摘　　要：氢气预冷是保障燃料电池汽车快速安全加注的必要措施,预冷负荷影响因素的研究有助于气态加氢站预冷系统的设计。然而,关于车辆侧参数变化对预冷负荷影响的研究缺乏。本文首先基于SAE 2601协议建立了加氢站级联储罐向车载气瓶加注过程的热力模型,然后讨论了车载侧压力损失、车载气瓶容积及初始压力等因素对加注过程参数的影响。结果显示,在站侧配置一定的情况下,车辆侧参数(流量系数,容积及初始压力)变化对预冷负荷都具有显著影响。但是,当车载侧流量系数大于0.1后,总预冷负荷变化范围低于2.1%。最大的预冷负荷发生在最大气瓶容积,最低初始压力时。预冷负荷峰值一般远大于平均预冷负荷,最大差值高达18 k W和50%以上。研究结果可以为加氢站设计及运行优化提供参考。Hydrogen pre-cooling is a necessary method to ensure a safe,adequate,and fast refueling for the fuel cell vehicles.The study on the pre-cooling load is helpful for the station design and operation.However,the related study is scarce.Accordingly,a thermodynamic model of the refueling process is established from the storage tanks to the vehicle cylinder,complying with SAE J2601.The impact of the pressure loss,volume,and initial pressure of the vehicle cylinders on the pre-cooling process are analyzed.The results indicated that the changes of vehicle parameters(fow coeficient,volume,and initial pressure)have significant effects on the pre-cooling load.When the vehicle-side flow coefficient is greater than 0.1,the total pre-cooling load varies in a range below 2.1%.The maximum pre-cooling load occurs at the maximum volume and the lowest initial pressure.The peak pre-cooling load is generally much larger than the average one,with a maximum difference of up to 18 kW and 50%.This study can provide reference for the optimizations of design and operation process of hydrogen refueling station.

关 键 词：加氢站 预冷 车辆侧配置 

分 类 号：U473.8[机械工程—车辆工程] TK91[交通运输工程—载运工具运用工程]